This Computing video supports teachers in explaining the development and function of barcodes and QR codes. It explores how products were originally processed manually and the evolution towards using unique product codes (UPCs) to improve speed and accuracy. The video describes how barcodes were inspired by Morse code and explains how scanners use reflected light to read black and white lines, translating them into digits. It also introduces QR codes as two-dimensional barcodes capable of storing thousands of characters and explains their use in linking to digital content.

This video is part of Kapow Primary’s Computing scheme of work – videos. It enhances teacher subject knowledge and helps them explain complex technological processes in a clear, engaging way. By linking the content to real-world applications, it supports pupils in understanding how data is stored, accessed and transferred efficiently in everyday life, and highlights the historical development of digital systems and the logic behind their design.

Computing, Upper key stage 2, Year 6, Data handling 1: Big Data 1, Lesson 1: Barcodes